//添加

curl -X POST -H "Content-Type: application/json" -d '{"firstName":"Tom","lastName":"Liu","email":"tom@163.com","username":"tom","password":"123"}' localhost:6013/users
//查询所有

curl -X GET localhost:6013/users

//按ID查询
curl -X GET localhost:6013/users/575c139999e0d3270b4d35b6

//更新动作
curl -X PUT -H "Content-Type: application/json" -d '{"firstName":"Tom1"}' localhost:6015/users/575c139999e0d3270b4d35b6

//删除
curl -X DELETE localhost:6016/users/575c139999e0d3270b4d35b6